Phonograph.



Patented Sept. ll, I900.

A. N. PETIT.

PHONOGRAPH (Application filed Oct. 27, 1899.)

2 Sheets-Sheet I (No Model.)

INVENTOH A TTOHNE Y6 No; 657,785. Patented Sept. ll, I900.

A. N. PETIT.

PHONOGRAPH.

(Application filed Oct. 27, 1899.) (No Model.) 2 Sheets$heet 2.

WITNESSES INVENTOH Q, aide/ 72 A TTOHNE Y we Norms #:Yzns co, wotouma. WASFINGTON, 1:1v c.

UNITED STATES PATENT OFFICE.

ADEMOR N. PETIT, OF NEWARK, NEW JERSEY.

PHONOGRAPH.

SPECIFICATION formingpart of Letters Patent No. 657,785, dated September 11, 1900.

Application filed October 27, 1899.

To all whom it may concern/.-

Be it known that I, ADEMOR N. PETIT, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented an Improvement in Machines for Reproducing Phonograph and Similar Records, of which the following is a specification.

This invention relates to mechanical devices for reproducing phonograph or similar records.

Heretofore two records have been simultaneously made by two recording-styles on blanks upon a single shaft with the blanks in line, and records have also been reproduced where the record and the blank were on parallel shafts with the following and reproducing styles between and in the same axial plane of the shafts; but in this device there was liability of either cutting too deep or not deep enough, and thus preventing the perfection of the reproduction. my invention I employ a shaft for a phonograph record-cylinder and a blank cylinder, the said parts being in line on the said shaft, and a following-style is in engagement with the record-cylinder and the reproducing-style in engagement with the blank cylinder, and I employ supports for the said parts and means for connecting the following and reproducing styles, so as to cause them to move in unison,'and I further employ adjustable devices for regulating the weight or pressure upon the said styles and also for controlling the position of the reproducing-style. The connection between the following and the reproducing styles maintains the said parts in a constant relation to one another and also causes the movement of the one from the other to regulate the extent and depth of the cut. The adjustable pressure upon the followingstyle is for keeping the same in the minute grooves of the record and to cause the point to follow the undulations of the same, and the adjustable weights acting upon the reproducing-style are for insuring the proper depth of cut, so that the same may be caused to agree with that of the following-cylinder.

In the drawings, Figure 1 is an elevation and partial section, and Fig. 2 a plan and Fig. 3 an end view representing the devices of my improvement. Fig. 4 is an inverted plan of In carrying out I Serial. No. 734,934. (No model.)

the following-style and adjacent parts, and

Fig. 5 is a longitudinal section through the record-cylinder and the blank cylinder and lel surfaces, but tapering inner surfaces to fit upon the tapering sleeves b c. The removable sleeve 0 is frictionally held to the shaft a. Any suitable device may be employed for this purpose. I have, however, shown a friction-spring 2 formed of the metal of the cylinder-head at the outer end. This is in the nature of a spring-tongue the point of which bears-upon the shaft, and as the sleeve 0 is removable from the shaft it may also be placed nearer to or farther from the record-cylinder at, so that in reproducing upon the blank 6 the record of the cylinder d the reproduction may be commenced at exactly the same distance from one end of the cylinder e as the record from the similar end of the cylinder (Z, or if the record on the cylinder d does not begin adjacent to the end the reproduction upon the blank 6 may be begun near the end, the said spring or tongue 2 producing sufficient friction or hold upon the cylinder to maintain the same in place and prevent a turning oralongitudinal movement except by greater force than is exerted by the reproducing mechanism.

I have found in the manufacture of blanks for phonograph cylinders that sometimes the blanks will contract, and consequently when placed upon the sleeve or mandrel it will not pass over the mandrel as far as if the contraction had not taken place, and if the mandrels or sleeves bore a fixed relation to one another it would therefore not be possible to start the reproduction at the same distance from the end of the blank as the record to-make the two cylinders agree. This is overcome by the adjustment of the mandrel or sleeve 0 in relation to the sleeve 1).

The back rod f is supported in any desired manner by a suitable frame or foundation,

and the sleeve f is capable of a longitudinal movement upon the said back rod, .and the sleeve g is clamped to the sleeve f by a setscrew shown. This movement is preferably imparted by the usual screw-feed. The sleeve 9 carries a curved arm g, extending over above the shaft and the cylinder, and at the outer end of the said arm g is an adjustingbar h, connected to and adjustable upon the said arui by a set-screw. A rest-bar t' comes below the adjustable bar h. This rest-bar is a fixture, and the adjustment of the bar It determines, generally, the position of the parts and the relation of the following and reproducing styles to the cylinders. An arm k is secured to the curved arm g, and it occupies a position transversely to the said arm and parallel with the shaft a and cylinders. The ends of the arm is carry heads 3 4, and pivoted to these heads are the carrier-blocks Z'm, through which there is a central opening in line with the arm k and the shaft at. These carrier-blocks have depending from them arms which serve as pivotal supports for the following style at and the reproducing-style 0, and the carrier-block m also has connected to its under side a guide-bar r, the office of which is to rest upon the surface of the blank cylinder 6 and following the same to give location to the reproducing style 0 by following the contour of the surface of the blank cylinder. The carrier-block Z is provided with an arm 5, bent at the outer end and made tubular to receive the adjustable hook 6, and through the opening in the said carrier-block Z is a helical contractile spring 7, one end of which is connected to the hook 6 and the other endtothefollowing-style. Thefollowing-style 'n and the reproducing-style o are each in the form of bell-crank levers pivoted to the supports depending from the carrier-blocks Zm, and in the opening in the carrier-block m there are an expansible spring 9 and the adj usting-screw 10, and a link or connecting bar 8 extends across between the respective upper ends of the levers of the following and reproducing styles, so as to connect them together positively and to cause any movement of the following-style to be immediately and simultaneously transmitted to the reprod ucing-style 0. The shape and configuration of the points of the following and reproducing styles form no part of the present invention, but are made in the usual and most acceptable form for the purpose to be accomplished.

By means of the screw 10 a pressure is exerted against the spring 9, and by means of the hook 6 a pressure is also applied to the style, so as to cause the same to press to a greater or less extent, as may be necessary, upon the record-cylinder and the blank cylinder, and by reference to Fig. 1 the simultaneous movements of the following and reproducing styles will be appreciated and the fact that the reproducing-style will follow each and every movement upon its pivot of the following-style, and of course the parts being rigidly spaced apart the grooves upon the respective cylinder and blank will be caused to agree. The pressure upon the following-style is caused and regulated by the movable weights 12 on the threaded arms 11, extending out from opposite ends of the carrier-block Z, and the pressure upon the reproducing-style is caused and regulated by the weights 14 upon the threaded ends of the arms 13, extending out from the opposite ends of the carrier-block m.

I claim as my invention- 1. In a machine for reproducing phonograph and similar records, the combination with a reproducing device, of a shaft, a fixed sleeve or mandrel thereon to receive the record-cylinder, a removable sleeve or mandrel adj ustable longitudinally upon the free end of the same shaft in relation to the fixed sleeve or mandrel and adapted to receive the blank cylinder, and means for holding the removable mandrel in position, substantially as set forth.

2. In a machine for reproducing phonograph and similar records, the combination wit-h a shaft and means for supporting and rotating the same, of a fixed sleeve or mandrel upon the shaft at a distance from the free end of the shaft greater than the length of the sleeve, a removable cylinder or mandrel adapted to be placed upon the free end of the shaft in line with the fixed sleeve or mandrel, the said sleeves or mandrels being tapering and adapted to receive the record and the blank cylinders, a means for frictionally holding the removable cylinder to the shaft as adjusted, a following-style and a reproducing-style connected together, means for supporting the same and for exerting a pressure thereon to cause said styles to work in unison, substantially as set forth.

3. In a machine for reproducing phonograph and similar records, the combination with a recording-cylinder and a blank cylinder in line and upon the same shaft, of afollowing-style and a reproducing-style and a connection between the said styles and supports therefor whereby the said styles are in line axially with the shaft, means for exerting a pressure upon the following-style to cause it to follow the record of the cylinder and means for exerting a pressure upon the reproducing-style to cause it to cut toa depth in the blank agreeing with the record, and adjustable Weights for regulating the pressure applied, substantially as set forth.

4. In a machine for reproducing phonograph and similar records, the combination with a record-cylinder and a blank cylinder in line and upon the same shaft, of a following-style in engagement with the record-cylinder and a reproducing-style in engagement with the blank cylinder, supports therefor and means connecting the following and reproducing styles to cause them to move in unison, substantially as set forth.

5. In a machine for reproducing phonograph and similar records, the combination with a record-cylinder and a blank cylinder in line and upon the same shaft, of a support-rod and curved arm pivoted thereto, an adjusting-bar connected to the free end of the curved arm, a fixed rest-bar upon which the adjusting-bar bears, a following and a reproducing style and means for connecting-and for supporting and for adjusting the same, substantially as set forth.

6. In a machine for reproducing phonograph and similar records, the combination with a record and a blank cylinder in line, a following and a reproducing style and a connection from one to the other also in line with the said cylinders and supports for the following and reproducing styles, a carrierblock I for the following-style and a carrierblock m for the reproducing-style to which the said styles are pivoted, said blocks being made centrally and transversely'hollow and springs in the said openings in the carrierblocks and means for applying tension thereto and a guide-bar connected to the carrierblock of the reproducing-style and adapted to bear upon the blank cylinder, substantialy as set forth.

7. In a machine for reproducing phonograph and similar records, the combination with a record and a blank cylinder in line, a following and a reproducing style and a connection from one to the other also in line with the said cylinders and supports for the following and reproducing styles, a carrierblock Z for the following-style and a carrierblock on for the reproducing-style to which the said styles are pivoted, said blocks being made centrally and transversely hollow, an arm 5 connected to the carrier-block l, a hook o 6 adjustable in said arm, a spring 7 in the opening of the said carrier-block with its respective ends connected to the said hook and to the following-style, a spring 9 in the open ingin the carrier-block m, an adjusting-screw 10 for exerting a pressure upon the spring 9 and a guide-bar r connected to the under side of the carrier-block m and resting upon the blank cylinder, substantially as set forth.

8. In a machine for reproducing phonograph and similar records, the combination with a record and blank cylinder in line, a sleeve for the record and a sleeve for the blank cylinder, a shaft on which the same are mounted, and means for revolving the said parts, of a following and a reproducing style and a connection from one to the other also in line with the said cylinders, supports for the said styles, a sleeve on which said supports are mounted, a supporting-shaft and means for progressively moving the said styles and supports over the surface of the record and blank cylinders, substantially as set forth 9. In a machine for reproducing phonograph and similar blanks, the combination with a record and a blank cylinder in line, of a style following the impression in the record cylinder, a reproducing style connected to the following-style, supports for the said styles and a guide-bar connected to the support of the reproducing-style for controlling the position and the depth of cut produced by the reproducing-style, substantially as set forth.

Signed by me this 17th day of October, 1899.

ADEMOR N. PETIT.

Witnesses:

GEO. T. PINCKNEY, S. T. HAVILAND. 

